可以和知你客服通信

saars/backend/app/api/agent_proxy.py

@@ -30,5 +30,16 @@ def agent_chat():
     try:
         reply = chat_with_agent(base_url, username, password, agent_id, message, user_id)
         return jsonify({"reply": reply or ""})
+    except ValueError as e:
+        err = str(e)
+        if "401" in err or "登录失败" in err:
+            return jsonify({"error": err}), 503
+        return jsonify({"error": err}), 502
     except Exception as e:
-        return jsonify({"error": str(e)}), 502
+        err = str(e)
+        # 任何包含 401/Unauthorized 的异常都视为平台认证失败，返回友好提示
+        if "401" in err or "Unauthorized" in err:
+            return jsonify({
+                "error": "知你客服平台登录失败(401)，请确认 8037 服务已启动且 PLATFORM_USERNAME/PLATFORM_PASSWORD 正确"
+            }), 503
+        return jsonify({"error": err}), 502